Bug 55853 - [C++11] ICE calling member function of templated class in lambda
Summary: [C++11] ICE calling member function of templated class in lambda
Status: RESOLVED DUPLICATE of bug 53137
Alias: None
Product: gcc
Classification: Unclassified
Component: c++ (show other bugs)
Version: 4.7.2
: P3 normal
Target Milestone: ---
Assignee: Not yet assigned to anyone
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2013-01-03 01:12 UTC by Kyle Konrad
Modified: 2013-01-03 16:21 UTC (History)
1 user (show)

See Also:
Host:
Target:
Build:
Known to work:
Known to fail:
Last reconfirmed:

Attachments
preprocessed source (38.93 KB, application/octet-stream)
2013-01-03 01:12 UTC, Kyle Konrad 		Details
View All Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Kyle Konrad 2013-01-03 01:12:03 UTC 
Created attachment 29075 [details]
preprocessed source

This appears to be similar but not identical to http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54604.

Repro case:

#include <map>
#include <functional>

using namespace std;

struct tData {
  double a;
};

template<class DataType>
class MapWrap {
public:

  void Insert(const int& p, const DataType& data) {
    m_[p] = data;
  }

  function<void(const DataType&)> CreateInserter(function<int(const DataType&)> data_to_int) {
    return [this, data_to_int](const DataType& data) { Insert(data_to_int(data), data); };
  }

private:
  map<int, DataType> m_;
};

int main(int argc, char **argv) {
  MapWrap<tData> m;
  auto fn = m.CreateInserter([](const tData& d) { return static_cast<int>(d.a); });
  fn({12});
}
Comment 1 Kyle Konrad 2013-01-03 01:13:26 UTC 
I forgot to mention that adding "this->" to the Insert() call causes compilation to succeed.
Comment 2 Kyle Konrad 2013-01-03 01:15:56 UTC 
Version information:

$ g++ -v
Using built-in specs.
COLLECT_GCC=g++
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/4.7/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 4.7.2-4' --with-bugurl=file:///usr/share/doc/gcc-4.7/README.Bugs --enable-languages=c,c++,go,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-4.7 --enable-shared --enable-linker-build-id --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.7 --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-gnu-unique-object --enable-plugin --enable-objc-gc --with-arch-32=i586 --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 4.7.2 (Debian 4.7.2-4)
Comment 3 Paolo Carlini 2013-01-03 16:21:31 UTC 
Dup.

*** This bug has been marked as a duplicate of bug 53137 ***